You can put test kernels on the solaris swap partition and boot them from
open firmware.  That way your solaris partition will still stay in tact. 
That's what I did, anyway.  miniroot.fs.gz is your friend.

> Well.  It's kind of an office desktop that no one is really using, so I
> can definitely make boot disks with test kernels on it, or maybe even
> sneak a netbsd partition on the box after the solaris partition and
> dual-boot.  Is releng holding something I should be trying?
>
> -----Original Message-----
> From: Martin Husemann [mailto:martin@duskware.de]
> Sent: Monday, January 20, 2003 8:48 AM
> To: Sporleder, Matthew (CCI-Atlanta)
> Cc: port-sparc64@netbsd.org
> Subject: Re: sun blade100
>
>
> On Mon, Jan 20, 2003 at 08:41:44AM -0500, Sporleder, Matthew
> (CCI-Atlanta) wrote:
>
>> Or if it isn't an issue anymore in -current, please correct me.  :)
>
> It still is, but hopefully to be solved soon. Do you have hardware where
> you could boot test kernels?
>
> Martin